Sri Anirvan was born in 1896 in Mymensingh in eastern Bengal (now Bangladesh). After his schooling (largely the study of Sanskrit and India's scriptures), he lived for twelve years in Assam at the Ashram of his Tantric Guru, Swami Nigamananda. Then in 1930, at the age of thirty-four, he left the Ashram to become a free wanderer. Living sometimes in quiet Himalayan retreats, sometimes in the teeming towns and cities, Anirvan spent his time meditating, studying and writing. He passed away in Calcutta in 1978 at the age of eighty-two. Anirvan is the author of twenty books, most of them commentaries on the scriptures and philosophical systems of India. His first book was a Bengali translation of Sri Aurobindo's The Life Divine which was published in 2 volumes during 1948-51. But the centre of his studies was the Vedas on which subject he acquired a rare mastery over the years. His great work, Veda Mimamsa was published in 3 volumes in 1961, 1965 and 1970. Meanwhile, several other works on the Upanishads, the Gita, Vedanta and Yoga had also been published. ;;